answersLogoWhite
Mercury Mountaineer
Buick LeSabre

Why do AC Vents stayed closed on 1998 Buick LeSabre?

101112

Top Answer
User Avatar
Wiki User
Answered 2010-07-30 00:14:58

The vent control mechanism is powered by engine vacuum. Start the engine and let it idle while you open the hood and listen for the tell-tale hissing sound of an open vacuum line. Once you find the loose hose/tube, it's just a matter of finding the orifice to which it belongs and plugging it back there. If the hose/tube is damaged, repairs might first need to be done before they can be inserted back and stay attached.

There are also vacuum lines controlling the vents behind the glove box, here is a link to a site that will help you with that side of the troubleshooting.

http://www.imcool.com/articles/aircondition/fix_vacuum_line.htm

001
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0

Your Answer

Related Questions


Under the hood in front of the transmission dip stick is a vacuum line. If it is disconnected or split it will make the air vents not work. If that's not it check your fuses.


I just fixed a similar problem on my 95 LeSabre, got info from this website. http://www.imcool.com/articles/aircondition/fix_vacuum_line.htm


Make sure refrigerant is fully charged. Does it have dual climate control? Perhaps passenger side sensor is not working properly


The vacuum supply line from the engine is disconnected or broken. When the vacuum supply is cut off the system defaults to the defrost mode.


There is a conduit with a fastener at the end. When I obtained my 2005 Buick LeSabre my rear air vents seemed to blow less than I had expected. After further inspection, I discovered that the conduit was not attached to the vent stack. So I played with it until I got it to slide into the vent stack and it seems to work as I would have expected at present.


The 1984 Buick uses vacuum lines to change air flow from defroster to ac vents. Check the entire vacuum system for leaks.


To change the CD player you need to disassemble the dash. First remove the 4 vents. There will be screws there. Also remove the woodgrain trim, there's screws there too. remove them and then pull the black dash piece out.


There may be something blocking the deflectors from sending air up there.


If the heat selector will not switch from defrost to the dash or foot vents on a 1992 Buick, it is possible that the cable connected to the vent is broken. When the selector is moved from defrost, a cable opens the other selected vents on the heater.


There are heater doors on the heat blower box that direct the path of the heat. Apparently the heater door to the floor vents is stuck closed.


side floor vents are manually closed, been along time but i think that's right.




The best way to prevent anything falling through is to make sure that they are closed. If your child is playing around them then make sure that they are closed.


I don't know about a 94 roadmaster, but on my 95 lesabre, i had to take the HVAC vents out first. Pry up on the bottom of them (very gently!) and they should pop out. There were screws holding the dashboard in behind where the vents used to be. Assuming you are removing the dash to install a new stereo or climate control unit, they all "pop" out. No screws. Best to throw the car in neutral once you are done pulling out dash as to slide dash cover out.


there is a blend door not operating properly the dash will have to be removed to repair most likely Read this article: http://www.imcool.com/articles/aircondition/fix_vacuum_line.htm I'm having the same problem. Jim


Take off the top dash cover.. There are some screws by the defrost vents, take off the tri piece to find those. And then underneath there will have about five more. Look up where the gear shift is to find these ones. Once you remove the dash cover, you will see a red box on the passenger side.



WHICH VENT If you're talking plumbing roof vents or soffit or ridge attic air vents; absolutely not!! I can't thing of a single vent that would be opened and closed at will.


I don't directly know about a '92 Estate Wagon, but I have a '95 LeSabre, and you have to start by carefully prying up on the vents with a small screw driver to pop them out. Then take out the screws that you just uncovered. This should allow you to remove the black plastic trim piece that spans the whole dashboard. After that, you can get to the screws holding the radio in and just pull it out and unplug it. But like I said, I have a 95 LeSabre, not a 92 Estate, so it could be different, but I hope this helps a little!


Not really, there's not much airflow when the furnace is not running.


I have a 99 Ford F250 super duty. When I turn on the fan to the heater and AC I can hear air moving in to the vents. No air moves out of the vent on any setting. It is like all vents are closed. what could be the problem. I have replaced the switch. I check the blower motor.


you have to remove the wood grain trim peice by just pulling then remove the air vents there are about 7 screws under the wood trim and then another 1 under each vent then open the glove box to get to 2 more screws then remove it once you remove all the screws the dash should lift right out


on your car it is a defalt mode for air to blow out defrost when there is no vacumn from the engine so you should look for a broken vacum line or see if it has come unplugged on the engine.


Your air conditioning cool air is routed to the various vents by routing doors. A malfunctioning routing door can be stuck and remain closed.



Copyright ยฉ 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.